Thermal and magnetic characteristics of bulk superconductor and performance analysis of magnetic shielding type of superconducting fault current limiter

H. Ueda, Atsushi Ishiyama, H. Kado, M. Ichikawa

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Superconducting fault current limiter (SCFCL) is expected to be the first application of a high-temperature superconductor (HTS) to electric power systems. We have been developing a magnetic shielding type of SCFCL that uses a cylindrical Bi-2223 HTS bulk. Short-circuit fault tests in a small SCFCL model were performed experimentally. A computer program based on the finite element method (FEM) taking the voltage-current (E-J) characteristics of the bulk material into account was developed to analyze the performance in the short-circuit fault tests and to investigate the dynamic electromagnetic behavior within a bulk superconductor. Because the E-J characteristic of HTS bulk depends on temperature and magnetic field, we investigated experimentally the E-J characteristics of a bulk superconductor in various operating temperatures and magnetic fields. The computer program considering the measured E-J characteristics simulated the electromagnetic behaviors in an SCFCL test model successfully.

    Original languageEnglish
    Pages (from-to)2402-2405
    Number of pages4
    JournalIEEE Transactions on Applied Superconductivity
    Volume11
    Issue number1 II
    DOIs
    Publication statusPublished - 2001 Mar

    Fingerprint

    Superconducting fault current limiters
    Magnetic shielding
    magnetic shielding
    Superconducting materials
    High temperature superconductors
    high temperature superconductors
    Short circuit currents
    short circuits
    Computer program listings
    Temperature distribution
    Magnetic fields
    temperature distribution
    electromagnetism
    computer programs
    Electric power systems
    electric power
    operating temperature
    magnetic fields
    finite element method
    Finite element method

    Keywords

    • E-J characteristics
    • Finite element analysis
    • HTS bulk material
    • Magnetic shielding type of superconducting fault current limiter

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Physics and Astronomy (miscellaneous)

    Cite this

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    AU - Ishiyama, Atsushi

    AU - Kado, H.

    AU - Ichikawa, M.

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